Keir for bleaching, &amp;c.



No. 702,309. Patented June I0, 1902 w. w. L. LISHMAN, T. w. HAUGHTON &J. .1. KIRKPATRICK:

Q KEIR FUR BLEACHING, 8L0.

,Apglication filed Mar. 15. 1901.

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No. 702,309. Patented lune l0; I902. W. W. L. LISHMAN, T. W. HAUGHTON &. J. J. KIRKPATRICK.

KEIB FOR BLEAGHING, 81.0.

{Application filed Mar. 16, 1901.)

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NITQEA STATES ATENT OFFICE.

WALTER W'ILLIAM LANCASTER LISI-IMAN, OF CORNHOLME, ENGLAND, AND THOMAS VVILFRED HAUGHTON, OF OULLEYBACKEY, AND JOHN J OI-INSTONE KIRKPATRICK, OF BALLYOLARE, IRELAND, ASSIGNORS TO THE LISHMAN PROCESS BLEAOI-HNG COMPANY, LIMITED, OF

CORNHOLME, ENGLAND.

KEIR FOR BLEACHING, 80c.

SPECIFICATION forming part of Letters Patent No. 702,309, dated June 10, 1902.

. Application filed March 15,1901. erial No. 51,360. (No model.)

To wZZ whom it may concern:

Be it known that we, WALTER WILLIAM LANCASTER LISHMAN, a resident of Cornholme, in the county of Lancaster, England, and THOMAS WILFRED H UeHroN, a resident of Oulleybackey, and JOHN JOHNSTQNE KIRK- PATRICK, a resident of Ballyclare, county of Antrim, Ireland, all subjects of His Majesty the King of Great Britain, have invented a certainnew and useful Improvement in Keir-s ing-pipes, the latter being in elevation. Fig.

2 is a plan of same, and 'Fig. 3 is a vertical section of a part of a heir to show a inodifi- I cation.

The keir is provided with the usual false bottom 1, consisting of an open grating bolted or otherwise secured at a suitable height inside the same and beneath which is the steamheating coil 2, having the necessary inlet and outlet. In addition to this bottom 1 we provide the heir according to our invention with an adjustable bottom 3,0n which the goods to be treated are placed, such bottom 3 being situated above the bottom 1, its adjustability enabling the size of the heir to be regulated according to the amount of goods to be treated. The bottom 3 may be formed of perforated plates, as shown, which preferably have a manhole 3 therein, and is carried by the head 4 of a screw 5, surrounded by a worm-wheel 6, the interior opening of which is threaded to correspond with the screw, so as to form a nut for it. Such Worm-wheel has a groove which forms a collar 7 beneath it, the groove being engaged'by the heads 8 8 of brackets 9 9, of which there may be two, three, or more, secured to the actual bottom of the keir and forming supports and bearings in which the wheel may revolve. A worm:10 engages the worm-wheel. It is carried by a suitable shaft 11, which is supported in a bearing on an arm 12, carried by onelof the brackets 9, said shaft being operated as required from outside the heir, so that the worm-wheel may be revolved and'the bottom 3 raised 0rlowered,as required, fort-he goods being treated. It will be obvious that a rack and pinion could be employed in place of the worm and wheel and the screw.

To hold the bottom 3 securely in the posi:

tion in which it is placed, the heir is provided on its inside with plates 13 13, secured to same and having a series of holes 14, with which the plain end of screws 15 15 can engage, said screws being carried by flanges 16 of the bottom 3. By inserting these pins in the desired holes the bottom is retained in the position in which it has been set. In place of this arrangement the bottom can be locked by means of levers engaging with catches or projections in the side of the keir.

The keir is provided outside with a jacketing,which may consist of lagging 17, of wood or other suitable material, held between angle-iron rings 18 18, secured to the sides of the keir, and to further retain same in place, as some of the keirs may be of a great height, bolts 19 are employed to connect the angleirons 18 outside of such lagging, which prevents the latter falling outwardly. The angle-iron rings inclose the lagging sufficiently at top and bottom to prevent water finding its way between the vessel and the lagging.

At the bottom of the heir is an inlet-pipe 20, controlled by a valve 21 and communicating by a circulating-pipe 22 with another inlet-pipe 23 at the top of the keir. In the pipe 22 is a valve 24: and a connection 25'with a supply-tank for the liquors and also a pipe 26 for steam injecting, while in the inlet-pipe 20 is a similar pipe 27 for steam injecting and a connection 28, forming a discharge-pipe for returning the liquor to the supply-tank. This pipe 28 is also provided at some point with a suitable valve. The connection may have a safety-valve 25 to relieve excess pressure in the circulating-pipes and a suitable valve to stop the liquor-supply beyond same. 30 is a safety-valve to relieve pressure in the keir, and 31 31 are manholes for obtaining access to the interior for filling the keir, and 32 is an air-tap for allowing the keir to be'exhausted of air, 33 isa perforated spreader supported by rods 34 from the top of the keir over the inlet of pipe 23, so that the liquor when entering from the top may be dispersed over the goods. 35 36 are steam-inlet pipes, which are controlled by suitable valves for passing larger bodies of steam into the keir than the injectors 26 27 can do.

When the valves 21 and 24 are open, a complete circulation can be obtained through the keir and the pipes 20, 22, and 23 by starting the steam-injector 26. When the valves 21 and 2 L are closed, the goods in the keir can be steamed through from top to bottom by steam from pipe 35 if the discharge-pipe 28 is opened, or if the tank is full of liquor it can be blown through with steam at its back after the boiling or other operation has been concluded. Hot or cold water for rinsing purposes can also be injected over the goods with or without pressure, or the water can be run in and then a head-pressure of steam be added before discharging again.

If the valve 24 is closed and the valve 21 opened, steam can be forced in from pipe 36, so that the pressure at both top and bottom of the keir can be equalized in a few moments, or the goods before the liquor is applied to them can be steamed through from the bottom upward.

The injector 27 will effect a circulation of the contents of the tank in the opposite direction to that eifected by the injector 26.

When used for dyeing and bleaching with non-boiling liquors, a centrifugal pump is employed instead of theinjectors,or the keir can be used with the adjustable bottom without the high-pressure arrangement described.

In the arrangement illustrated in Fig. 3 the keir is provided with the usual false bottom 1 and steam-coi12; but the adjustable bottom is composed of a number of chains or a netting 38, of metal links or rings, which are hooked at the required point to chains 39, suspended from eyelets 40 on the inside of the keir. In this way a bag-like bottom can be provided which is adjustable in the keir at the required height.

What We claim is 1. In a keir, and in combination, an open false bottom, means for securing it therein, a further movable open false bottom situated over it, a screw carried by the movable bottom, a worm-wheel forming a nut for such screw, means for holding the nut and allowing it to rotate, and a worm for rotating the nut to raise and lower the screw and bottom.

2. In a keir, a fluid-inlet pipe 20, 23 respectively at either end of same, a circulatingpipe 22 connecting such inlet-pipes, valves for each inlet-pipe, a connection 25 in such circulating-pipe communicating withasource of liquid-supply, a steam-injector 26 in circulating-pipe 22 for moving the liquid therein in one direction, a steam-injector 27in inlet-pipe 20 for moving the liquid in the other direction, a steam-pipe 35 communicating with inlet-pipe 23 for introducing a large body of steam into one end of the keir, a steam-pipe 36 communicating with the circulating-pipe 22 and inlet-pipe 20 for introducing a large body of steam into the other end of the keir, and a discharge-pipe 28 communicating with the inlet-pipe 20.

In testimony whereof we have hereunto set our hands in the presence of the subscribing witnesses.

WALTER WILLIAM LANCASTER LISIIMAN. THOMAS WILFRED HAUGHTON. JOHN JOHNSTONE KIRKPATRICK.

\Vitnesses to the signature of Walter Williain Lancaster Lishman:

J. B. HOWARD, GERvAsE APPLEYARD.

Witnesses to the signatures of Thomas W'il fred Haughton and John .Iohnstone Kirkpatrick:

ADAM KIRKwooD, JOHN Srorr. 

